Towel rack



FIG. 1 is a front perspective view of the towel rack, showing my new design;

FIG. 2 is one side plan view of the towel rack, the opposite side being a mirror image of the side shown;

FIG. 3 is a front plan view of the towel rack;

FIG. 4 is a rear plan view of the towel rack;

FIG. 5 is a top plan view of the towel rack; and,

FIG. 6 is a bottom plan view of the towel rack. 

The ornamental design for a towel rack, as shown and described. 